After divorcing her husband, Maki raises her middle school son Taro single-handedly. One day, Taro wins a "trip to Okinawa" in a neighborhood lottery, but since Taro is busy with his club activities, Maki goes to Okinawa in his place. After several days, when she returns, Taro can't help but exclaim. Her skin has tanned to a brown color, and both her appearance and personality seem completely different, more cheerful. Confused, Taro listens as Maki says, "My sunburn is itchy," and has him apply moisturizing cream. Taking her son's unsteady hand, she gradually moves it closer to her intimate area…
